The elegant Bara Imambara is a large historical complex, located in the town of Lucknow, India. The complex is an excellent example of the Mughal style of architecture with sophisticated ancient engineering that leaves one spellbound. Walls only support the ceiling of the large hall without pillars, and the walls have engraved channels that transmit even the smallest sound. The complex features a series of labyrinths, entangled corridors, a mosque and underground passages. Guided tours are offered, and visitors can take advantage of stunning photo opportunities.